Delinting device for drying tumblers



Jan, 13, 1925.

J. H. TAYLOR DELINTING DEVICE FOR DRYING TUMBLERS 2 Sheets-S et 2 [Nl 'lNTO/x A FTOA'N Original Filed Sept Patented Jan. 13, 1925.

UNITED STATES PATENT OFFICE.

TAMPS H. TAYLOR, 0F

NEW Yolix, N. Y. MACHINERY COMPANY, or cINcINN DELINTING DEVICE FOR DRYING TUMBLERS.

Application led September To aZZ whom it may concern.'

Be it known that I, JAMES H. TAYLOR., a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Delintin Devices for Drying Tumblers, of which the following is a specification.

This invention relates to the art of laundry machines, more especially to the class of drying apparatus, as for instance, the type known as drying tumblers, in which 1 have devised a means for removing lint from the air after its passage through the drying chamber.

he drying tumbler comprises in general an air and fan chamber, a heating chamber, and a drying chamber with means for foreing a current of air through the said several chambers for the purpose of drying materials in the drying chamber. Air is sucked in by the fan from the outside, and after being warmed by passing through the heating chamber is forced through the drying chamber and then back to the air cham- From this point the air will be Wholly re-circ-ulated over the same path or may be partially expelled from the machine and only part of it recirculated through the Inachine. Either of these two methods followed in the process' of drying the materials contained within the drying chamber. Then when it the circuit of air through the machine, so that the fresh air which is sucked into the forced directly and thence back to the air chamber, from which point it is wholly expelled from the machine casing and replaced by a fresh supply from the outside atmosphere. The circulation of air in the different manners just referred to is In all the manners of operation just referred to it has been found that considerable picked up b v the air in its passage through the dryinor chamber, which lint, if not filtered from t e air, would be recircu- 10, 1920, Serial No. 409,449. Renewed January 11, 1923.

lated through the machine, and would also be drawn into the fan. Then upon forcing part or all of the lint-ladened air to the outsi e atmosphere considerable annoyance ld be caused to employs who are engaged 1n Work in the room where such a drying tumbler is situated. deemed highly desirable to remove the lint under all circumstances.

The object of my invention is therefore to remove the lint from the air after its passage through the drying chamber by means of a perforate screen throuvh which air chamber.

I have also provided means whereby this lint collecting screen will pass from a point inside the machine casing to a point outside of the casing Where the lint can be removed from the screen member.

v Another object of my invention consists a fluid body which carries it oft` to the point of discharge.

y invention comprises also the provision of automatic means connected with the for moving the perforate lint collector and out of the machine casing, and also operation of the brushes which remove the lint from the collector.

ther forms of structure will suggest themselves for embodyin this invention. preferred form w1ll be understood companying drawings.

Fig. l is a vertical transverse section through the machine casing; Fig. 2 is a view of the machine casing partly in fullv and partly in sectlon showing' the gear connection between the fan and operating means for the lint collector, and also the arrangement of the lint 3 is a section in the plane of a line c-c, Fi 2, showing the arrangement of the endless lint collector and the brushes; Fig. detail plan view of the stru` ture of the endless lint collector; Fig. another detail view of the structure of the lint collector in transverse section; Fig. 6 is a sectional view in the plane b-Z, of Fig. 2, showing the manner of mounting the rotary brushes; through which access may be had to the ma- Fig. 7 is a detail view of the water main in terials contained therein upon opening door the fluid container; and Fig. 8 is a vertical 34 which is hingedly mounted upon the main section ofthe two-way valve taken in the casing 1. Baille plates 35 are also provided plane af-a. of Fig. 2. within the tumbler for a well known pur- 7u The lower part of the machine casing 1 pose. constitutes a heating chamber 2, while the Brief reference will now be made to the upper part of the casing is divided into a operation of the device as described up to fan and air chamber 3 and a drying chamthis point. When the dampers 7, 12 and 14 ber in which is located and mounted the occupy the positions as shown in Fir'. 1, 75 foraminous tumbler 4. The air chamber is fresh outside air is sucked into the mac ine further artitioned off into a fresh air chamby the fan 10 and is forced through the ber 5 which has communication with the heating coils where it will follow a circuimain part of the air chamber 3 through tous route because of the baffle plates 32, and

passageway 6, and also with the drying thence througjh the passage-way 17 to the so chamber through a assagle-way which is drying cham ei-,from which point it will controlled by damperp. T e passage-way 6 pass trough the air passage between walls is also controlled by this same damper 7 25 and 26. This air which has collected which is hingedly mounted on the shaft 8. more or less lint from the materials con- The fan casing 9 is located within the main tained Within the drying tumbler will now B6 air chamber 3 and incloses the fan 10 which be iiltered through the screen 34 which exoperates upon its shaft 1l. Communication tends over the opening 27 and the clean air is also provided between the air and fan will be returned to the air and fan chamber chamber and the heating chamber 2, which 3. This air will now be partly expelled communication is controlled by damper 12 from the machine casing through the outlet 90 hingedly mounted by means of shaft 13. 24 without any deleterious effects to the em- The damper 14 on the hingedly mounted ploys since the lint has been removed thereshaft 15, which has an I-beam support 16, from. The major portion of this air will, controls the passage-wa 17 which allows however, be recirculated over the same communication between t cheating chamber course just described until the materials in 95 2 and the drying chamber which incloses the drying tumbler have been sufficiently the foraminous tumbler 4. A stop 18 is dried to be removed therefrom. At this time further provided upon the partition wall 19 the dempers 7, 12 and 14 will be manipufor the damper 7, while a shoulder or stop lated so as to exclude the heating chamber 2O is provided for the damper 14 at the en from the circuit of air through the machine; of the same partition wall 19. As will be that is to say, the damper 7 will be brought seen from Fig. 1,the artition wall 21, which to close the passage-way 6, the damper 12 is a continuation o the partition 22, is will be made to close the passage-way 11', spaced from the partition wall 19 so as to while the damper 14 will close the passageprovide the fresh air chamber 5. The parway 17 Then the air will be forced direct- 105 tition wall 22 has the proper curvature to ly from the fresh air chamber 5, which has accommodate the cylindrical form of the communication with the outside atmosphere, foraminous tumbler 4. The damper l2 conand pass through the drying chamber and trols also the outlet 24 through which air thence to the point where it -will be filtered may be forced from the air and fan chamthrough the screen 34. The clean air will 110 ber 3 to the outside atmosphere. then be forced entirely out through the As will be seen in Fig. 1, the partition opening 24 to the outside atmosphere. This wall 22 is bent back to form a wall 25 which operation will be continued until the mais substantially parallel with the top part terials are sufficiently cooled to be con- 26 of the main casing wall. An aperture veniently removed from the drying chamber. vni 27 is provided in the partition wall 25 across The foraminous cylinder is rotated back and the full extent of the machine, the air from forth but the mechanism is not here shown the drying chamber being forced through as it is old in the art. this opening on its return to the air cham- The lintcollecting means or device before ber. It is at this point that I rovide a lint referred to will now be described more 12u collecting means, the detailed description of in detail. Generally speaking, it comprises l which will follow later. a web or web-like member which travels The heating chamber, which is provided through the machine and across the path ot with doors 28 and 29, incloses the heating the air current, its movement being some- U coils 30 which are mounted upon the truck what like the web of paper in a paper-mak- 125 31 and are provided also with battle ing machine. lt may be endless and in the plates 32. drawings, for purposes of illustration, is

Referring now to the drying chamber, it shown as an endless screen belt 34 before will be seen from Fig. 1 t at a door 33 is referred to. This belt is mounted for operprovided in the foramnous cylinder 4 ation by sprockets 35 actuated by suitable pinion connections from the fan The screen belt is so arranged as to have two parallel stretches, one extending through the inside of the machine casing, while the other extends on the outside. 'lhis will be better understood from Fig. 3 in which the lower stretch of the endless screen member is shown as extending through the walls of the machine casing, while the upper stretch of the belt passes over a fluid tank which is arranged on the top of the machine casing. This tank 36 is provided with a water supply pipe 37 having apertures 38, and also with an overflow outlet 39 and drain outlet 40. The overflow and drain outlets 39 and 40, respectively, as will be seen from Fig. 2, have a common dis charge pipe 41. shown better in Fig. S. By means of a two-way valve 42 under control of handle 43, either of the outlets 39 0r 40 may be Abrought into communication with the discharge pipe 41. A constant supply of water or other suitable fluid is obtained through pipe 37 and the overflow will be taken care of by outlet 39. When it is desired. however, to clean the tank, the valve 42 will be so arranged as to allow communication between the drain outlet and the discharge pipe 41, so that the tank 36 may be flushed.

Rotary brushes 44 are mounted on their shafts 45 on the walls of the tank 36 and the upper stretch of the endless lint collector is so arranged that these brushes will have a proper wiping engagement with the under face of the lint collector at this point. The shafts of these brushes are secured in position at one end by means of the bearings 46 hinged at 47. Thumb screws 47a which may be mounted in any suitable man'- ner lock the bearings 46 in closed position. B v means of this detachable mounting it is possible to remove the brushes whenever desired for the purpose of cleaning, the other ends of these shafts 'being mounted in fixed bearings 48 on the wall of the tank.

The shafts of the brushes extend at one end beyond the casing wall, as shown in Fig. 3. and these ends are provided with pulleys 48 which receive operation from the shafts 49 and 50 of the sprocket members by means of the belt connections 51. The sprockets 52, 53, which have a clockwise movement, transmit to the brushes a counter-clockwise movement, as a result of which these brushes will tend to move the fluid in the tank toward the outlets 39 and 40. The sprocket shafts 49 and 50 are hearings 54 and 55 upon the outside walls of the casing and receive their operation through bevel gear 56 mounted upon shaft 56. which gear 56 meshes with a bevel gear 57, which 4is in turn mounted upon the same shaft with gear 58. The train of ears and pinions 59, 60, 61, 62 and 63 provi e a drive gear and shaft 11.

suitably mounted inl connection between gear 58 and the shaft 11 of the fan upon which shaft is mounted gear 63. A pair of sprockets, one being shown at 64 are mounted on the opposite wall of the casing and serve as idlers for the endless screen belt. Thus it will be seen that drive connection is had between the fan shaft and the shafts of sprockets and also the rotary brushes which have pulley connection with the shafts of the sprocket members. I do not limit myself to any particular gear ratio between the Shaft 11 and the shaft 45, but it is understood that any ratio may be used to give the proper speed for operation of the endless web or belt 34.

The side edge portions of the perforate belt member 34' are secured to the chain member 66, which, as will be seen from Fig. 4, has openings for engagement with 'the teeth upon the sprockets 52, 53. These chain members have connecting ears 67 upon which the side edge portions of the screen member 34 are mounted, the screen being held in this position by means of clampin" blocks 68 and rivets 69 which pass throng the blocks 68 and the ears 67. Along the other face of each of the chain members 66 there extends a felt strip 69 which is also secured in this arrangement by means of the same rivets 69. The edge portions along the opening 27 serve astracks for the belt and are reinforced by means of angle bars 70. .Ns seen in Fig. 3, the two parts of the partition 25 along the aperture 27 extend beyond the casing walls and are curved downwardly as indicated at 71, in line with the track portions, so as to facilitate the entrance of the screen belt into the openings in the casing wall. As shown at 72, in F ig. 3, the outer marginal portions of the felt strips 69 will assume the position indicated by dotted lines in Fig. 5 during the time of the engagement of the sprocket teeth in the holes in the chain member 66. During the time, however, when the endless belt is `passing through the machine casing, the felt strips 69 will assume the position indicated by full lines in Fig. 5.

By virtue of the particular location and arrangement of the lint collector, as best illustrated in Fig. 1, between the fan chamber and the drying chamber, the suction caused by the fan tends to hold or seal the lower stretch of the endless belt upon its' track and in this way produce a more eilicient operation, since it will be impossible for any particles of lint to pass through the opening 27 without being filtered through the foraminous member 34'; that is to say, the felt members 69 will be caused by suction to closely adhere to the track and in this way seal or prevent any opening under the belt member through wh1ch any particles of lint might otherwise pass from the drying chamber to the air chamber.

l IlU With the above construction it will be seen that only one stretch of the lint collector will be exposed to the lint-ladened air at any one time, and that fresh unexposed portions of the lint collector are being constantly substituted for the preceding portion through which the lint-ladened air has passed. As a result of this arrangementa very large aggregate surface area is brought to the point of exposure to the lint-ladened air. Furthermore, by the use of the rotary brushes lint is effectively removed from the foraminous member and deposited in the circulating {iuid to be discharged. That portion ot' the screen is then returned to the place of exposure Within the machine in a clean fresh condition.

Other advantages resulting from applicants device Will suggest themselves to those who are familiar with the art to which this invention relates.

What I claim is:

l. In a drying machine, the combination of a machine casing, an air and fan chamber, a heating chamber, a drying chamber, means for circulating air through said several chambers, a non-liquid lint collecting device arranged to be moved into and out of-the machine and across the path of the air after its passage through the drying chamber, and means for operating said device.

2. In a drying machine. the combination of a machine casing, an air and fan chamber, a heating chamber, a drying chamber, means for circulating air through said several chambers, a lint collector arranged to be moved into and out of the machine casing and across the path of the air after its passage through the drying chamber, means for operating said lint collector, and means arranged outside of said casing for removing the lint from said collector.

3. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for causing the How of air through said chambers, an endless lint collector for collecting lint from the air after its passage through the drying chamber, said collector being arranged with one ortion in the path of the active current o air and another portion shielded from contact with any air circulated within the casing, and means for operating said lint collector to move the shielded portions thereof into the path of the active current of air.

4. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for causing the How of air through said chambers, an endless lint collector for collecting lint from the air after its passage through the drying chamber, said collector bein arranged with one ortion in the path of t e active current o air and another portion shielded from contact with any air circulated within the casing, means for operating said lint collector to move the shielded portions thereof into thc path of the active current of air, and means outside of the active current of air for removing the lint from said collector.

5 In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for causing the Aflovv of air through said several chambers, a lint collector for collecting the lint from the air after its passage through the drying chamber, said collector having one portion in the path of the active air current and another ortion shielded from any air circulated Within the casing, a liquid container in proximity to said collector and outside of the active air current, and means for removing lint from the collector and depositing it 1n the liquid in said container.

6. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for producin tlow of air through said chambers, an a non-liquid lint collecting means for collecting lint from the air after its passage through the drying chamber,

said means having one portion 1n the path ot the ,active air current and another portion shielded from contact With any air circulated within the casing, and means for automatically and successively presenting fresh portions of said means for ex air coming from the drying ciambcr.

7. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for causing flow of air through said chamber, a per crate medium movable into and out of said casing for collecting lint from the air after its passa e through the drying chamber, and means or automatically and successively presenting fresh portions of said medium for and withdrawing the same from cx osure to the air coming from the drying c amber.

8. In a drying machine, the combination of a casing, anair and fan chamber, a heating chamber, a drying chamber, means for causing the flow of air through said Chambers, a medium for collecting lint from the air after its passage through said drying chamber, means in said casing for preventing exposure of more than a portion of said medium at a time in the path of the air current, means for automatically removing successive portions of said medium to a point away from the point of exposure and out of any contact with any air circulated in the casing, and means for automatically` removing the lint from said exposed medium and returning the same medium to position for further exposure.

osure to the` -l 9. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber.l a drying chamber, means for causing the How of air through said chambers, a medium for collecting lint from the air after its passage through said drying` chamber', means in said casing for preventing exposure of more than a portion of said medium at a time in the path of the air current. means for automatically removing successive portions of said medium to a point away from the point of exposure and out of any contact with any air circulated in the casing, means for automatically removing the lint from said exposed medium vand returning the same medium toy position for further exposure. and means for removing the lint from said medium.

10. In a drying machine, the combination of a machine casing, an air and fan chamber. a heating chamber, a drying chamber, means for circulating air through said sevoral chambers, a lint collector, said machine casing beingr provided with a seat for said lint collector as it is exposed to the lintladen air` means for controlling the path of air so that it will be directed against said collector after its passage through said drying chamber, said collector being so arranged on said seat and being responsive to the suction of said air circulating means so that such suction will tend to hold said collector upon said seat.

11. In a drying machine, the combination of a casing, an air and fan chamber, a heating chamber, a drying chamber, means for causing the flow of air through said chambers, the machine being provided with an opening through which the air flows after passing through the drying chamber, a weblike lint collecting device movable across said opening for removing the lint from the air, and sealing means for said opening carried by said device.

12. In a drying machine` the combination of a machine casing. an air and fan chamber, a heating chamber, a drying chamber, means for circulating air through said several chambers, a lint collector arranged in the path of the air after its passage through said drying chamber, a fluid body arranged in proximity to said collector, a brush ar'- ranged for wiping contact with said collector, and means for operating said brush to remove the lint from said collector and deposit it in said Huid.

13. In a drying machine. the combination of a machine casing, an air and fan chamber, a heating chamber, a drying chamber, means for circulating air through said several chambers, a lint collector arranged in the path of the air after its assage through said drying chamber, a circuiiiting duid body arranged in proximit to said collector, a brush for removing e lint from said col-v lector and depositing the same in said Huid body, and means for operating said brush.

14. In a lint collecting device, the combination of a perforate lint collecting body, a driving sprocket, a sprocket chain for engagement with the driving sprocket, ears projecting from said chain, blocks securing the marginal portions of said collecting body to said ears, and a wiper felt secured to the opposite faces of said ears, that portion of said felt covering the chain proper being free for movement away from said chain to permit engagement of the sprocket teeth with said sprocket chain.

15. In a drying machine, the combination of a machine casing, an air and fan chamber, a heating chamber, a drying chamber, means for circulating air through said several chambers, a partition wall extending from said drying chamber to the side wall of said casing and forming a restricted area with the top walls of said casing, said partition wall being provided with a longitudinal aperture at a point above the fan and air chamber, the marginal portions of said aperture being provided with track portions, said casing being provided with apertures in its walls at the opposite ends of said first named longitudinal aperture. thereby permitting the travel of a foraminous lint collecting member along said tracks and through said casing. i

16. In a lint collecting device, the combination of a Huid container, one wall of said u-id container being provided with a bearing for the reception of a journal, the opposite wall having a semicircular notch to receive the other end of a Journalta lock member hingedly mounted on a horizontal axis upon the side of said notch, the under side of said lock member having a serincircular depression supplemental-to that in said side wall. and means for detachably securing the other end of said locking member so as to provide a journal bearing for a brush member. t

. 17. In a drying machine, the combination of a machine casing, an air and fan chamber, a heating chamber, a drying chamber, .an endless perforate body for collecting lint from the air after its passage through the drying chamber, means for circulating air through said several chambers and through said perforate body after its passage through the drying chamber. said perforate body being so arranged as to have the air pass only from the inside outwardly through one stretch of said endless body.

18. In a drying machine, the combination of a machine casing` an air and fan chambei', a heating chamber, a drying chamber. a perfor-ate medium for collecting lint from the air after its passage through the drying chamber, means for moving said medium into and out of said casing, and means for circulating air after its passage through the drying chamber throu h said several chambers and through sai medium.

19. In a drying machine, the combination of machine casing, an air and fan chamber, a heating chamber, a drying chamber, an endless perforate body for collecting lint from the air after its passage through the drying chamber` means for circulatin air after its passage through the drying c 1amber through said several chambers and through said perforate body, said perforate body being so arranged las to have the air pass only from the inside outwardly through one stretch of said endless body, and means located between the stretches of the said endless body and at a point removed from the path of air for removing the lint therefrom.

20. A drying machine including a drying chamber, and a lint collector therefor, comprising a foraminous web member, means for directing` the air coming from said drying chamber through said member, and in only one directionlwith respect to said member and means for moving said member to present fresh surfaces thereof to the circulating air.

21. A drying machine including a drying chamber, and a line collector therefor, comprising a foraminous web member, means chamber, and a lint collector therefor, cominrr chamber through said member, and in on y one direction with respect to said member, means for moving said member to present fresh surfaces thereof to the circulating air, and means outside of the air current for removing the lint therefrom.

22. A drying machine including a drying chamber, and a lint collector therefor, com` prising an endless foraminous member, means for causing the air coming from said chamber to flow through said foraminous member, and in only one direction with respect to said member and means for so moving said endless member as to continuously present fresh surfaces to the air stream.

23. A drying machine including a drying chamber, and a lint collector therefor, comprising 'an endless foraminous member, means for causing the air coming from said chamber to flow through said foraminous member, and in only one direction with respect to said member, means for so moving said endless member as to continuously present fresh surfaces to the air stream, and means for removing the lint therefrom.

24. A drying machine including a drying chamber, nand a lint collector therefor, oomprising an endless foraminous member movable in an endless path, means for delivering the air coming from said drying chamber to the inner surface of said endless member and causing the same to flow outwardly therefrom, and means for shielding a portion of said member from the air current.

25. A drying machine includingr a drying chamber, and a lint collector therefor, comprising an endless foraminous member movable in an endless path, means for delivering the air coming from said drying chamber to the inner surface of said endless member and causing the same to flow outwardly therefrom, means for shielding a portion of said member from the air current, and means for removing the lint from the inner surface of said member.

In testimony whereof I affix my signature.

JAMES H. TAYLOR.

circulating air after its passage through the drying chamber through said several chambers and through said medium.

19. In a dryin, r machine, the combination of machine casing, an air and fan chamber, a heating chamber, a drying chamber, an endless perforate body for collecting lint from the air after its passage through the drying chamber` means for circulating air after its passage through the drying chamber through said several chambers and through said perforate body, said perforate body being so arranged as to have the air pass only from the inside outwardly through one stretch of said endless body,l and means located between the stretches of the said endless body and at a point removed from the path of air for removingr the lint therefrom.

20. A drying machine including a drying chamber, and a lint collector therefor, comprising a foraminous web member, means for directing the air coming from said drylng chamber through said member, and in only one directionvvith respect to said member and means for moving said member to present fresh surfaces thereof to the circulating air.

21. A dryingr machine including a drying chamber, and a line collector therefor. comprising a foraminous Web member, means chamber, and a lint collector therefor, coming chamber through said member, and in only one direction with respect to said member, means for moving said member to present fresh surfaces thereof to the circulating air, and means outside of the `air current for removing the lint therefrom.

22. A drying machine including a drying chamber, and a lint collector therefor, co-my,

prising an endless foraminous member, means for causing the air coming from said chamber to flow through said foraminous member, and in only one direction With respect to said member and means for so moving said endless member as to continuously present fresh surfaces to the air stream.

28. A drying machine including a drying chamber, and a lint collector therefor, comprising an endless foraminous member, means for causing the air coming from said chamber to flow through said foraminous member, and in only one direction With respect to said member, means for so moving said endless member as to continuously present fresh surfaces to the air stream, and means for removing the lint therefrom.

24. A drying machine including a drying chamber, `and a lint collector therefor, comprising an endless foraminous member movable in an endless path, means for delivering the air cominglr from said drying chamber to the inner surface of said endless member and causing the same to flow outwardly therefrom, and means for shielding a portion of said member from the air current.

25. A drying machine including a drying chamber, and a lint collector therefor, comprising an endless foraminous member movable in an endless path, means for delivering the air coming from said dryingr chamber to the inner surface of said endless member and causing the same to flow outwardly therefrom, means for shielding a portion of said member from the air current, and means for removing the lint from the inner surface of said member.

In testimony whereof I aix my signature.

JAMES H. TAYLOR.

Certificate of Correction.

It is hereby certified that in Letters Patent No. 1,522,553, granted January 13, 1925, upon the aBplication of James H.JV Taylor, of New York, N. Y., for an 1mprovement in elinting Devices for Dryin Tumblers errors a r in the a Ppeprinted specification requiring correction as fo lows: Page 6, line 29, claim 21, for the word line read z'fnt; same page and claim, lines 31 and 32, strike out the words chamber, and a lint collector therefor, coming and insert instead fm' directing the aia coming from said drying; and that the said Letters Patent should be read with these corrections therein that the same may conform` to the record of the case in the Patent Ollice.

Signed and sealed this 3d day of M [sun] arch, A. D. 1925.

KARL FENNING, Acting Commissioner of Patents.

Certificate of Correction.

It is hereby oertified that in Letters Patent No. 1,522,553, granted January 13, 1925, upon the aBplication of James HLTaylor, of New York, N. Y., for an improvement in elinting Devices for Dryin Tumblers, errors appear in the printed specification requiring correction as fo lows: Page 6, line 29, claim 21, for the word line read Zimt' same page and claim, lines 31 and 32, strike out the words chamber, and a 11nt collector therefor, coming and insert instead for directing the a/r com/ng Ifrom .said drying; and that the said Letters Patent should be read with these corrections therein that the same my conform to the record of the case in the Patent Office.

Signed and sealed this 3d day of March, A. D. 1925.

[SEAL] KARL FENNING,

Acting Gonmz'ssomr of Patente. 

